Finding the Fourth Proportional to 493,931.72, 681,624.78 and 267,577.76

Step by Step Solution

1. Step 1: Write the proportion equation
   493,931.72 : 681,624.78 = 267,577.76 : x
2. Step 2: Convert to fraction form
   493,931.72/681,624.78 = 267,577.76/x
3. Step 3: Cross multiply
   493,931.72x = 681,624.78 × 267,577.76
4. Step 4: Simplify right side
   493,931.72x = 182,387,631,792.89
5. Step 5: Solve for x
   x = 182,387,631,792.89/493,931.72
6. Step 6: Final answer
   x = 369,256.77